change editor window's titile.

unity_title_change.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;


namespace lss.editor {
    [InitializeOnLoad]
    public class ChangeEditorTitle : MonoBehaviour {
#if UNITY_EDITOR_WIN
        [DllImport("user32.dll", EntryPoint = "SetWindowText")]
        public static extern bool SetWindowText(System.IntPtr hwnd, System.String lpString);

        [DllImport("user32.dll")]
        private static extern System.IntPtr GetActiveWindow();

        // unity editor will auto reset editor title in many cases
        static ChangeEditorTitle() {
            EditorApplication.update += ChangeTitleWhenSceneOnRuntime;
        }

        private static DateTime lastTime;

        private static void ChangeTitleWhenSceneOnRuntime() {
            if ((DateTime.Now - lastTime).TotalSeconds > 1) {
                lastTime = DateTime.Now;
                ChangeTitle();
            }
        }

        private static void ChangeTitle() {

            IntPtr windowPtr = GetActiveWindow();
            var path = Application.dataPath.Substring(0, Application.dataPath.Length - 7);

            SetWindowText(windowPtr, string.Format("{0} [{1}]  [{2}]  [{3}]",
                path, Application.unityVersion ,EditorUserBuildSettings.activeBuildTarget.ToString() , SystemInfo.graphicsDeviceType.ToString() ));
        }
#endif
    }
}